Visual Studio 2015 RTM contains support for C++ Edit and Continue for both x86 and x64 with the default debug engine (which means you can use EnC and other features such as natvis and async call stacks at the same time). We’ll continue to improve the experience based on feedback but we believe we have completed this feature to a level that we can close this item. Read more details at http://blogs.msdn.com/b/vcblog/archive/2015/07/22/c-edit-and-continue-in-visual-studio-2015.aspx

As announced in the following blog post, this work is in progress for Visual Studio 2015. A rough preview was available for opt-in in the Visual Studio 2015 RC release, much more complete support will be available in the RTM version with continued improvements in subsequent 2015 Updates

It's really good to hear the team is working on this! I hope it's clear at this point that edit and continue should always be kept in working order and not left by the wayside, as it has been over the past few releases. Thanks!

I'm really missing this feature from the 32 bit platform. Huge productivity gains can be had with this feature. Our customers all want this feature since recompiling and restarting their applications on our testers can take minutes. Edit and continue allows them to avoid the costly recompile and initialization procedures.

I think Microsoft plan to fade out C++ support in Visual Studio. Its evident that Microsoft will stop developing C++. No other reason makes sense that Edit and continue is not available for native apps.